Drospirenone and Estetrol

NEXTSTELLIS is indicated for use by females of reproductive potential to prevent pregnancy. NEXTSTELLIS is a combination of drospirenone, a progestin, and estetrol, an estrogen, indicated for use by females of reproductive potential to prevent pregnancy. ( 1 ) Limitations of Use NEXTSTELLIS may be less effective in females with a BMI ≥ 30 kg/m 2 . In females with BMI ≥ 30 kg/m 2 , decreasing effectiveness may be associated with increasing BMI ( 14 ). Limitations of Use NEXTSTELLIS may be less effective in females with a BMI ≥ 30 kg/m 2 . In females with BMI ≥ 30 kg/m 2 , decreasing effectiveness may be associated with increasing BMI [see Clinical Studies (14) ].

NEXTSTELLIS (drospirenone and estetrol tablets) is available in a blister card, with 28 6-mm round, bi-convex film-coated tablets in the following order: 24 pink active tablets containing 3 mg drospirenone and 14.2 mg estetrol embossed with a drop-shaped logo on one side. 4 white inert tablets embossed with a drop-shaped logo on one side. NEXTSTELLIS consists of 28 tablets in the following order ( 3 ): 24 pink active tablets each containing drospirenone 3 mg and estetrol 14.2 mg 4 white inert tablets

NEXTSTELLIS is contraindicated in females who are known to have or develop the following conditions: A history of, increased risk for, or current arterial or venous thrombotic/thromboembolic diseases. Examples include females who are known to: – Smoke, if 35 years of age and older [see Boxed Warning and Warnings and Precautions (5.1) ] – Have current or history of deep vein thrombosis or pulmonary embolism [see Warnings and Precautions (5.1) ] – Have cerebrovascular disease [see Warnings and Precautions (5.1) ] – Have coronary artery disease [see Warnings and Precautions (5.1) ] – Have thrombogenic valvular or thrombogenic rhythm diseases of the heart (for example, subacute bacterial endocarditis with valvular disease, or atrial fibrillation) [see Warnings and Precautions (5.1) ] – Have inherited or acquired hypercoagulopathies [see Warnings and Precautions (5.1) ] – Have uncontrolled hypertension or hypertension with vascular disease [see Warnings and Precautions (5.1) ] – Have diabetes mellitus with hypertension or end-organ damage; or diabetes mellitus of > 20 years duration [see Warnings and Precautions (5.9) ] – Have migraine headaches with aura [see Warnings and Precautions (5.4) ] Current diagnosis of, or history of, breast cancer, which may be hormone-sensitive [see Warnings and Precautions (5.5) ] Hepatic adenoma, hepatocellular carcinoma, acute hepatitis, or severe (decompensated) cirrhosis [see Warnings and Precautions (5.6) ] Use of hepatitis C drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir, due to the potential for ALT elevations [see Warnings and Precautions (5.7) ] Abnormal uterine bleeding that has an undiagnosed etiology [see Warnings and Precautions (5.5) ] Renal Impairment [see Warnings and Precautions (5.2) ] Adrenal insufficiency [see Warnings and Precautions (5.2) ] A high risk of arterial or venous thrombotic diseases ( 4 ) Breast cancer or history of breast cancer ( 4 ) Hepatic adenoma, hepatocellular carcinoma, acute hepatitis or decompensated cirrhosis ( 4 ) Co-administration with hepatitis C drug combinations containing ombitasvir/paritaprevir/ritonavir, with or without dasabuvir ( 4 , 7.1 ) Abnormal uterine bleeding that has an undiagnosed etiology ( 4 ) Renal impairment ( 4 ) Adrenal insufficiency ( 4 )

Thromboembolic Disorders and Other Vascular Problems : Stop NEXTSTELLIS if a thrombotic or thromboembolic event occurs. Start no earlier than 4 weeks after delivery. Consider all cardiovascular risk factors before initiating in any female, particularly in the presence of multiple risk factors. ( 5.1 ) Hyperkalemia : Check serum potassium concentration during the first NEXTSTELLIS treatment cycle in females on long-term treatment with medications that may increase serum potassium concentration. ( 5.2 , 7.2 ) Hypertension : Monitor blood pressure periodically and stop use if blood pressure rises significantly. ( 5.3 ) Migraine : Discontinue if new, recurrent, persistent, or severe migraines occur. ( 5.4 ) Hormonally-Sensitive Malignancy: Discontinue NEXTSTELLIS if a hormonally-sensitive malignancy is diagnosed. ( 5.5 ) Liver Disease : Withhold or permanently discontinue for persistent or significant elevation of liver enzymes. ( 5.6 ) Glucose Tolerance and Hypertriglyceridemia : Monitor glucose in females with prediabetes or diabetes. Consider an alternate contraceptive method for females with hypertriglyceridemia. ( 5.8 ) Gallbladder Disease and Cholestasis : Consider discontinuing NEXTSTELLIS in females with symptomatic gallbladder or cholestatic disease. ( 5.9 ) Bleeding Irregularities and Amenorrhea : May cause irregular bleeding or amenorrhea. Evaluate for other causes if symptoms persist. ( 5.11 )

5.1 Thromboembolic Disorders and Other Vascular Problems Stop NEXTSTELLIS if an arterial or venous thrombotic/thromboembolic event occurs. Stop NEXTSTELLIS if there is unexplained loss of vision, proptosis, diplopia, papilledema, or retinal vascular lesions and evaluate for retinal vein thrombosis immediately. Discontinue NEXTSTELLIS during prolonged immobilization. Start NEXTSTELLIS no earlier than four weeks after delivery in females who are not breast feeding. The risk of postpartum thromboembolism decreases after the third postpartum week, whereas the likelihood of ovulation increases after the third postpartum week. Before starting NEXTSTELLIS, evaluate any past medical history or family history of thrombotic or thromboembolic disorders and consider whether the history suggests an inherited or acquired hypercoagulopathy. NEXTSTELLIS is contraindicated in females with a high risk of arterial or venous thrombotic/thromboembolic diseases [see Contraindications (4) ] . Cardiovascular and Cerebrovascular Events Use of CHCs increases the risk of cardiovascular events and cerebrovascular events, such as myocardial infarction and stroke. The risk is greater among females over age 40, smokers, and females with hypertension, dyslipidemia, diabetes, or obesity. The risk increases with age, particularly in females 35 years of age and older, and with the number of cigarettes smoked. In addition to cigarettes, use of other nicotine-containing products – including cigars, smokeless tobacco, hookah tobacco, e-cigarettes, and nicotine replacement therapy – may also increase the risk of serious cardiovascular events from CHC use. Venous Thromboembolism Use of CHCs also increases the risk of venous thromboembolic events (VTEs), such as deep vein thrombosis and pulmonary embolism. The rate of VTE in females using COCs has been estimated to be 3 to 9 cases per 10,000 woman-years and should be considered in the context of other female of reproductive potential subpopulations who are not taking CHCs [see Adverse Reactions (6.1) ]. Risk factors for VTEs include smoking, obesity, family history of VTE, and prolonged immobilization in addition to other factors that contraindicate use of CHCs [see Contraindications (4) ] . The presence of multiple risk factors for VTE may increase the risk synergistically. The risk of VTE is highest during the first year of CHC use and when restarting hormonal contraception after a break of four weeks or longer. The risk of VTE returns to baseline approximately 3 months after CHC use is discontinued. Postpartum Venous Thromboembolism The risk of VTE is increased during the first six weeks postpartum compared to the risk in non-pregnant, non-postpartum females. The risk is highest in the first three weeks postpartum , but remains higher than baseline until at least six weeks postpartum. The presence of multiple risk factors for VTE may further increase the risk. Obstetric complications may extend the elevated risk up to 12 weeks postpartum. Figure 1 shows the risk of developing a VTE for females who are not pregnant and do not use COCs, for females who use COCs, for pregnant females, and for females in the postpartum period. To put the risk of developing a VTE into perspective: if 10,000 females who are not pregnant and do not use oral contraceptives are followed for one year, between 1 and 5 of these females will develop a VTE. Figure 1 Likelihood of Developing a VTE Two prospective studies of NEXTSTELLIS have been conducted, one in Europe/Russia (NCT02817828; C301) and one in North America (NCT02817841; C302) (N=3,632), for the prevention of pregnancy in females 16-50 years of age. There was one reported VTE in the Europe/Russia study [see Adverse Reactions (6.1) ]. Figure 1

5.2 Hyperkalemia NEXTSTELLIS is contraindicated in females with conditions that predispose to hyperkalemia (e.g., renal impairment, hepatic impairment, and adrenal insufficiency). Females receiving daily, long-term treatment for chronic conditions or diseases with medications that may increase serum potassium concentration should have their serum potassium concentration checked during the first treatment cycle. Monitor serum potassium concentration in females at increased risk for hyperkalemia (i.e., those females who take a strong CYP3A4 inhibitor long-term and concomitantly with NEXTSTELLIS). [see Drug interactions (7) ] . Monitor females taking NEXTSTELLIS who later develop medical conditions and/or begin medication that put them at an increased risk for hyperkalemia. NEXTSTELLIS contains drospirenone, a progestin, which has anti-mineralocorticoid activity, including the potential for hyperkalemia in high-risk females, comparable to a 25 mg dose of spironolactone. In two Phase 3 trials of NEXTSTELLIS (N = 3,632) for the prevention of pregnancy in females 16-50 years of age, seven subjects were noted to have hyperkalemia and one subject discontinued due to elevated potassium levels. Most females who developed hyperkalemia in the clinical development studies of NEXTSTELLIS had only mild potassium elevations and/or isolated increases that returned to normal while still on study medication.

5.3 Hypertension NEXTSTELLIS is contraindicated in females with uncontrolled hypertension or hypertension with vascular disease [see Contraindications (4) ] . For all females, including those with well-controlled hypertension, monitor blood pressure periodically and stop NEXTSTELLIS if blood pressure rises significantly. An increase in blood pressure has been reported in females using COCs. This increase is more likely in older females with extended duration of use.

5.4 Migraine NEXTSTELLIS is contraindicated in females who have migraines with aura [see Contraindications (4) ] . Discontinue NEXTSTELLIS in females using NEXTSTELLIS who develop new migraines that are recurrent, persistent, or severe. Discontinue NEXTSTELLIS if there is an increased frequency or severity of migraines during CHC use (which may be prodromal of a cerebrovascular event). Migraines with aura increase the risk for stroke. This stroke risk is further increased in females who have migraines with aura with use of CHCs.

5.5 Malignant Neoplasms Breast Cancer NEXTSTELLIS is contraindicated in females who currently have or have had breast cancer because breast cancer may be hormonally sensitive [see Contraindications (4) ]. Epidemiology studies have not found a consistent association between use of combined oral contraceptives (COCs) and breast cancer risk. […]

The following clinically significant adverse reactions with the use of COCs are discussed elsewhere in labeling: Serious cardiovascular events including venous and arterial thromboembolism [see Boxed Warning and Warnings and Precautions (5.1) ] Hyperkalemia [see Warnings and Precautions (5.2) ] Liver disease [see Warnings and Precautions (5.5) ] Most common adverse reactions (≥2%): bleeding irregularities, mood disturbance, headache, breast symptoms, dysmenorrhea, acne, weight increased, and libido decreased ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Mayne Pharma at 1-844-825-8500 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch

6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of one drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The data provided reflect the experience with the use of NEXTSTELLIS in two large prospective studies, one in Europe/Russia (C301) and one in North America (C302) (N = 3,632) of NEXTSTELLIS for the prevention of pregnancy in females 16-50 years of age. The mean duration of NEXTSTELLIS exposure was 317 and 257 days for the respective studies. The study population was 27 years of age on average, with a mean BMI of 25 kg/m 2 . The racial distribution was 83% White; 11% Black; 3% Asian; and 3% Other. Table 4 Adverse Reactions Occurring in ≥ 2% of Females Receiving NEXTSTELLIS in Studies C301 and C302 Preferred Term (PT) Participants with Adverse Reaction – US/Canada Phase 3 trial (n [%]) (N = 2073) Represents the safety population of C302 only (US/Canada). Participants with Adverse Reaction – Two Phase 3 trials (n [%]) (N=3632) Represents the safety population of C301/C302 for DRSP/E4. Any adverse reaction Any adverse reaction equals any adverse event ≥ 2%. 1205 (58.1) 2126 (58.5) Mood disturbance Includes PTs: adjustment disorder, affective disorder, agitation, anger, anxiety, depressed mood, depression, depressive symptom, disorientation, emotional disorder, emotional distress, euphoric mood, generalized anxiety disorder, insomnia, irritability, mood altered, mood swings, nervousness, panic attack, panic disorder, performance fear, restlessness, sleep disorder, stress, suicidal ideation, tearfulness. 226 (10.9) 329 (9.1) Bleeding irregularities Includes PTs: abnormal withdrawal bleeding, amenorrhea, cervix hemorrhage uterine, coital bleeding, dysfunctional uterine bleeding, menometrorrhagia, menorrhagia, menstrual disorder, menstruation irregular, metrorrhagia, oligomenorrhea, polymenorrhea, uterine hemorrhage, vaginal hemorrhage. 201 (9.7) 393 (10.8) Breast symptoms Includes PTs: anisomastia, breast cyst, breast discoloration, breast discomfort, breast disorder, breast engorgement, breast enlargement, breast mass, breast edema, breast pain, breast swelling, breast tenderness, fibrocystic breast disease, galactorrhea, gynecomastia, mastoptosis, nipple disorder, nipple pain. 110 (5.3) 197 (5.4) Headache Includes PTs: headache, premenstrual headache, and tension headache. 100 (4.8) 227 (6.3) Dysmenorrhea Includes PTs: adnexa uteri pain, dysmenorrhea, premenstrual cramps, pelvic discomfort, pelvic pain, uterine spasm. 84 (4.1) 133 (3.7) Weight increased Includes PTs: weight increased, weight fluctuation, body mass index increased, weight loss poor, and obesity. 68 (3.3) 108 (3.0) Acne Includes PTs: acne and cystic acne. 66 (3.2) 136 (3.7) Libido decreased/lost Includes PTs: libido decreased and loss of libido. 27 (1.3) 72 (2.0) Adverse Reactions Leading to Study Discontinuation (> 1%) Of 3,632 females in two clinical studies for prevention of pregnancy in females 16-50 years of age, 9.6% discontinued due to an adverse reaction; the most frequent adverse reaction leading to discontinuation was bleeding irregularity (2.8%). Six subjects (0.17%) discontinued study participation due to new onset of migraine with aura; two subjects (0.05%) discontinued due to severe migraine. Thromboembolic Disorders and Other Vascular Problems During studies C301 and C302, one thromboembolic event was reported in a female who had been taking NEXTSTELLIS for 75 days and had normal BMI < 25 kg/m 2 . Depression In Study C302 (US/CA), 36 (1.7%) subjects reported depression while using NEXTSTELLIS. Nine (0.3%) subjects had drug withdrawn as a result of symptoms of depression.

6.2 Postmarketing Experience Five studies that compared breast cancer risk between ever-users (current or past use) of COCs and never-users of COCs reported no association between ever use of COCs and breast cancer risk, with effect estimates ranging from 0.90 – 1.12 (Figure 2). Three studies compared breast cancer risk between current or recent COC users (<6 months since last use) and never users of COCs (Figure 2). One of these studies reported no association between breast cancer risk and COC use. The other two studies found an increased relative risk of 1.19 – 1.33 with current or recent use. Both of these studies found an increased risk of breast cancer with current use of longer duration, with relative risks ranging from 1.03 with less than one year of COC use to approximately 1.4 with more than 8-10 years of COC use. Figure 2 Relevant Studies of Risk of Breast Cancer with Combined Oral Contraceptives RR = relative risk; OR = odds ratio; HR = hazard ratio. "ever COC" are females with current or past COC use; "never COC use" are females that never used COCs. Figure 2

CYP3A Inducers: May lead to contraceptive failure and/or increase breakthrough bleeding. Avoid concomitant use. If concomitant use is unavoidable, use an alternative or back-up contraceptive method during co-administration and up to 28 days after discontinuation of the CYP3A inducer. ( 7.1 ) See Full Prescribing Information for additional clinically significant drug interactions ( 7 ).

7.1 Effects of Other Drugs on Hormonal Contraceptives Clinically significant drug interactions with other drugs that affect NEXTSTELLIS are presented in Table 5. Table 5. Clinically Significant Drug Interactions With Other Drugs that Affect NEXTSTELLIS CYP3A Inducers Clinical Effect DRSP is a CYP3A4 substrate. Concomitant use with strong CYP3A inducers or certain moderate or weak CYP3A inducers may decrease DRSP exposure [see Clinical Pharmacology (12.3) ] , which may lead to contraceptive failure. Prevention or Management Strong CYP3A Inducers Avoid concomitant use. If concomitant use is unavoidable, use an alternative contraceptive method (e.g., intrauterine system) or backup non-hormonal contraceptive method during coadministration and up to 28 days after discontinuation of the strong CYP3A inducer. Moderate and Weak CYP3A Inducers Use an alternative or backup contraceptive method during coadministration and up to 28 days after discontinuation of the CYP3A inducer, unless the Prescribing Information of the specific moderate or weak CYP3A inducer indicates there is no clinically significant interaction with NEXTSTELLIS. Strong CYP3A Inhibitors Clinical Effect DRSP is a CYP3A4 substrate. Concomitant use with a strong CYP3A inhibitor may increase DRSP exposure [see Clinical Pharmacology (12.3) ] , which may increase the risk of adverse reactions of NEXTSTELLIS, including hyperkalemia [see Warnings and Precautions (5.2) ] . Prevention or Management Consider monitoring serum potassium concentration in patients who take a strong CYP3A4 inhibitor long-term and concomitantly with NEXTSTELLIS. Drugs that May Reduce the Absorption of NEXTSTELLIS Clinical Effect Concomitant use with drugs such as bile acid sequestrants may decrease the E4 and DRSP exposure, which may lead to contraceptive failure and/or an increase in breakthrough bleeding. Prevention or Management Separate time of administration of NEXTSTELLIS and the concomitant drug. Refer to the concomitant drug's Prescribing Information for additional information.

7.2 Effects of NEXTSTELLIS on Other Drugs Table 6 includes clinically significant drug interactions with NEXTSTELLIS that affect other drugs. Table 6. Clinically Significant Drug Interactions of NEXTSTELLIS on Other Drugs Anti-Diabetic Drugs Clinical Effect Concomitant use of NEXTSTELLIS may reduce the blood glucose lowering effect of anti-diabetic drugs [see Warnings and Precautions (5.8) and Clinical Pharmacology (12.2) . Prevention or Management Increase frequency of glucose monitoring and increase anti-diabetic drug dosage, as needed, based on glucose levels. Drugs that may increase serum potassium concentration Clinical Effect There is a potential for an increase in serum potassium concentration in females taking NEXTSTELLIS with other drugs that may increase serum potassium concentration [see Warnings and Precautions (5.2) and Clinical Pharmacology (12.2) ]. Prevention or Management Monitor serum potassium concentration in females at increased risk for hyperkalemia. Lamotrigine Clinical Effect Concomitant use of NEXTSTELLIS may decrease lamotrigine exposure [see Clinical Pharmacology (12.3) ] , which may reduce efficacy of lamotrigine. Prevention or Management Adjust lamotrigine dosage as recommended in its Prescribing Information based on NEXTSTELLIS initiation or discontinuation. Systemic Corticosteroids Clinical Effect Concomitant use of NEXTSTELLIS may increase the exposure of certain systemic corticosteroids, which may increase the risk of corticosteroid-related adverse reactions [ see Clinical Pharmacology (12.2) . Prevention or Management Follow the recommendation for the corticosteroid in accordance with its Prescribing Information. Consider more frequent monitoring for corticosteroid adverse reactions when used concomitantly with NEXTSTELLIS. Thyroid Hormone Replacement Therapy Clinical Effect Concomitant use of NEXTSTELLIS may increase thyroid-binding globulin concentration [see Warnings and Precautions (5.10) and Clinical Pharmacology (12.2) ]. Prevention or Management Monitor thyroid-stimulating hormone (TSH) level and follow the recommendation for thyroid hormone replacement in accordance with its Prescribing Information.

Pregnancy : Discontinue if pregnancy occurs. (8.1) Lactation : Advise postpartum females that NEXTSTELLIS can decrease milk production. ( 8.2 )

8.1 Pregnancy Risk Summary Discontinue NEXTSTELLIS if pregnancy occurs, because there is no reason to use hormonal contraceptives during pregnancy [see Contraindications (4) ] . Epidemiologic studies and meta-analyses have not found an increased risk of genital or nongenital birth defects (including cardiac anomalies and limb-reduction defects) following exposure to COCs before conception or during early pregnancy. Reproductive toxicity studies performed with E4 alone have shown expected pharmacologic effects in animals, which are considered consistent with estrogen exposure. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4 percent and 15 to 20 percent, respectively.

8.2 Lactation Risk Summary Contraceptive hormones and/or metabolites are present in human milk. COCs can reduce milk production in breast-feeding females. This reduction can occur at any time but is less likely to occur once breast-feeding is well established. When possible, advise the nursing woman to use other methods of contraception until she discontinues breast-feeding [see also Dosage and Administration (2.1) ] . The developmental and health benefits of breast-feeding should be considered along with the mother's clinical need for NEXTSTELLIS and any potential adverse effects on the breast-fed child from NEXTSTELLIS or from the underlying maternal condition. After oral administration of DRSP 3 mg/EE 30 µg, about 0.02% of the DRSP dose was excreted into the breast milk of postpartum females within 24 hours. This results in a potential maximal daily dose of less than 1 µg DRSP in an infant.

8.4 Pediatric Use Safety and efficacy of NEXTSTELLIS have been established in females of reproductive potential. The study population of C302 [see Clinical Studies (14) ] was in females of reproduction age 16-50 years of age. Use of NEXTSTELLIS before menarche is not indicated.

8.5 Geriatric Use NEXTSTELLIS has not been studied in postmenopausal females and is not indicated in this population.

8.6 Hepatic Impairment NEXTSTELLIS is contraindicated in females with hepatic impairment [see Contraindications (4) , Warnings and Precautions (5.1 , 5.3) ] . The mean exposure to drospirenone (DRSP) in females with moderate liver impairment is approximately three times higher than the exposure in females with normal liver function. NEXTSTELLIS has not been studied in females with severe hepatic impairment [see Clinical Pharmacology (12.3) ].

8.7 Renal Impairment NEXTSTELLIS is contraindicated in females with renal impairment [see Contraindications (4) , Warnings and Precautions (5.1) ]. In subjects with creatinine clearance (CLcr) of 50–79 mL/min, serum DRSP levels were comparable to those in a control group with CLcr ≥ 80 mL/min. In subjects with CLcr of 30–49 mL/min, serum DRSP concentrations were on average 37% higher than those in the control group. In addition, there is a potential to develop hyperkalemia in subjects with renal impairment whose serum potassium is in the upper reference range, and who are concomitantly using potassium sparing drugs [see Warnings and Precautions (5.2) , Drug Interactions (7.2) and Clinical Pharmacology (12.3) ] .

8.8 Race/Ethnicity No clinically significant difference was observed between the pharmacokinetics of E4 or DRSP depending on race [see Clinical Pharmacology (12.3) ] .

8.9 Body Mass Index (BMI)/Body Weight The safety and efficacy of NEXTSTELLIS in females with a BMI ≥ 35 kg/m 2 have not been adequately evaluated.

CHCs prevent pregnancy primarily by suppressing ovulation.